<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="课程码" prop="courseCode">
        <el-input v-model="queryParams.courseCode" placeholder="请输入课程码" clearable @keyup.enter="handleQuery" />
      </el-form-item>
      <el-form-item label="课程名称" prop="courseName">
        <el-select v-model="queryParams.courseName" style="width: 200px" placeholder="请选择课程名称" clearable>
          <el-option v-for="dict in course_subject" :key="dict.value" :label="dict.label" :value="dict.value" />
        </el-select>
      </el-form-item>
      <el-form-item label="学分" prop="creditHours">
        <el-input v-model="queryParams.creditHours" placeholder="请输入学分" clearable @keyup.enter="handleQuery" />
      </el-form-item>
      <el-form-item label="最大容量" prop="maxCapacity">
        <el-input v-model="queryParams.maxCapacity" placeholder="请输入最大容量" clearable @keyup.enter="handleQuery" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd" v-hasPermi="['courses:courses:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="success" plain icon="Edit" :disabled="single" @click="handleUpdate" v-hasPermi="['courses:courses:edit']">修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="danger" plain icon="Delete" :disabled="multiple" @click="handleDelete" v-hasPermi="['courses:courses:remove']">删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="Download" @click="handleExport" v-hasPermi="['courses:courses:export']">导出</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="coursesList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="课程ID" align="center" prop="courseId" />
      <el-table-column label="课程码" align="center" prop="courseCode" />
      <el-table-column label="课程名称" align="center" prop="courseName">
        <template #default="scope">
          <dict-tag :options="course_subject" :value="scope.row.courseName" />
        </template>
      </el-table-column>
      <el-table-column label="学分" align="center" prop="creditHours" />
      <el-table-column label="最大容量" align="center" prop="maxCapacity" />
      <el-table-column label="状态" align="center" prop="status" />
      <el-table-column label="课程描述" align="center" prop="description" />
      <el-table-column label="创建者" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.createTime, "{y}-{m}-{d}") }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新者" align="center" prop="updateBy" />
      <el-table-column label="更新时间" align="center" prop="updateTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.updateTime, "{y}-{m}-{d}") }}</span>
        </template>
      </el-table-column>
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['courses:courses:edit']">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['courses:courses:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total > 0" :total="total" v-model:page="queryParams.pageNum" v-model:limit="queryParams.pageSize" @pagination="getList" />

    <!-- 添加或修改课程信息对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="coursesRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="课程码" prop="courseCode">
          <el-input v-model="form.courseCode" placeholder="请输入课程码" />
        </el-form-item>
        <el-form-item label="课程名称" prop="courseName">
          <el-select v-model="form.courseName" placeholder="请选择课程名称">
            <el-option v-for="dict in course_subject" :key="dict.value" :label="dict.label" :value="dict.value"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="学分" prop="creditHours">
          <el-input v-model="form.creditHours" placeholder="请输入学分" />
        </el-form-item>
        <el-form-item label="最大容量" prop="maxCapacity">
          <el-input v-model="form.maxCapacity" placeholder="请输入最大容量" />
        </el-form-item>
        <el-form-item label="课程描述" prop="description">
          <el-input v-model="form.description" type="textarea" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入内容" />
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Courses">
import { listCourses, getCourses, delCourses, addCourses, updateCourses } from "@/api/courses/courses";

const { proxy } = getCurrentInstance();
const { course_subject } = proxy.useDict("course_subject");

const coursesList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    courseCode: null,
    courseName: null,
    creditHours: null,
    maxCapacity: null,
    status: null,
    description: null,
  },
  rules: {
    courseCode: [{ required: true, message: "课程码不能为空", trigger: "blur" }],
    courseName: [{ required: true, message: "课程名称不能为空", trigger: "change" }],
  },
});

const { queryParams, form, rules } = toRefs(data);

/** 查询课程信息列表 */
function getList() {
  loading.value = true;
  listCourses(queryParams.value).then((response) => {
    coursesList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    courseId: null,
    courseCode: null,
    courseName: null,
    creditHours: null,
    maxCapacity: null,
    status: null,
    description: null,
    createBy: null,
    createTime: null,
    updateBy: null,
    updateTime: null,
    remark: null,
  };
  proxy.resetForm("coursesRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map((item) => item.courseId);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加课程信息";
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _courseId = row.courseId || ids.value;
  getCourses(_courseId).then((response) => {
    form.value = response.data;
    open.value = true;
    title.value = "修改课程信息";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["coursesRef"].validate((valid) => {
    if (valid) {
      if (form.value.courseId != null) {
        updateCourses(form.value).then((response) => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addCourses(form.value).then((response) => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _courseIds = row.courseId || ids.value;
  proxy.$modal
    .confirm('是否确认删除课程信息编号为"' + _courseIds + '"的数据项？')
    .then(function () {
      return delCourses(_courseIds);
    })
    .then(() => {
      getList();
      proxy.$modal.msgSuccess("删除成功");
    })
    .catch(() => {});
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download(
    "courses/courses/export",
    {
      ...queryParams.value,
    },
    `courses_${new Date().getTime()}.xlsx`
  );
}

getList();
</script>
